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E. P. F. JENSEN, B. W. WEBB & J. JENSEN. ELECTRIC TIME, TEMPERATURE, AND BUEGLAR ALARM AND CALL BELL.

No. 378,202. Patented Feb. 21, 1888.

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'H. P. E. JENSEN, B. W. WEBB & J. JENSEN. ELECTRIC TIME, TEMPERATURE, AND BEEELAE ALARM AND GALL BELL.

No. 378,202. Patented Feb. 21, 1888.

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' UNITED STATES PATENT Fries.

HANS PETER FREDERIK JENSEN, BROXVNE WOLSEY WEBB, AND JENS JENSEN, OF LONDON, COUNTY OF MIDDLESEX, ENGLAND.

ELECTRIC TIME, TEMPERATURE, AND BURGLAR ALARM AND CALL-BELL.

SPECIFICATION forming part of Letters Patent No. 378,202, dated February 2]., 1888.

Application filed May'lt, 1881. Serial No. 239,256. (No model.) Patented in England October 3, 1&82, No. 4,712.

To all whom it may concern:

Be it known that we, HANS PETER FRED- nnn: Jansen, BROWNE WoLsEY WEBB, and June Jansen, all subjects of the Queen of Great Britain, and residents of London, in the county of Middlesex, England, have invented certain newand usefulImprovementsin Clocks, (for which we have obtained a patent in Great Britain, No. 4,712, dated October 3, 1882,) of which the following is a full, clear, and exact specification.

Our invention relates to improvements in clocks with which there is combined a clock, fire, and burglar alarm; also a servants call and alarm, all of which will be fully described hereinafter.

Our invention consists of mounting on the sleeve of the hourhand of clocks a notched sleeve carrying an indicator or hand, which may be mounted in such a manner as will admit of its being moved by hand around the hour-hand sleeve without moving the latter when in operation. The notch upon thesleeve of the indicator or hand, as aforesaid, is adapted to receive a pin secured to the wheel mounted on the end of the hour'hand sleeve, which is pushed forward by a metallic spring, which closes the electrical circuitand gives the alarm predetermined by the indicator. There is arranged within the clock-case a removable electric bell, which may be of any ordinary make, the poles of which may be connected withaficxibleclectrical conductor of anylength desired and mounted upon a drum, which may,

i if necessary, be provided with a recoil-spring such as used in the ordinary tapemeasure. This drum is composed of a sleeve of insulating material. mounted upon a fixed arbor. Each end of said sleeve of insulation is provided with a metallic disk or wheel, one of course insulated from the other and electrically connected with the flexible conductor. The periphery of these wheels or disks is adapted to be in constant frictional contact with separate metallic brushes or springs, each having one of their ends rigidly fixed to a block of insulation secured within the case of the clock to or near its top. These brushes form the poles of the current and are electrically connected with a battery, also arranged within the case of the clock.

The face of the clock is provided with a thermometer adapted to automatically close the circuit at a predetermined degree of heat, thus giving the alarm. The face of the clock is also provided with three binding-posts arranged in circuit with the battery and bell, hereinbefore mentioned. To two of these binding-posts are connected two electrical conductors leading to a burglar-alarm adapted to be attached to doors and windows. There are also two more conductors leading from two of the three binding-posts aforesaid to a device to be arranged in the floor of an apartment occupied by servants. This device is so arranged that when the hour arrives to awaken them the bell, which may be removed to their apartment, as hereinafter indicated, and the clock in another, will sound the alarm and continue until the servant shall have arisen from the bed, and should the servant return to the bed the bell will give the signal. In this case there may be two bells--one to remain in the apartment of the employer, the other within that of the servant.

To the top of the case of the clock is arranged .a. suitable push-button, which, whenpressed upon, will cause a metallic spring to make contact with a corresponding contact. Both of these contacts are arranged in circuit with the battery and bell. This latter construction is adapted to be used as a call-bell.

In the drawings, Figure 1 represents a front elevation of an ordinary carriage-clock. Fig. 2 represents a verticalsection of a clock'l'rame, in which are shown the main features of my invention.

Similar letters refer to similar parts throughout the drawings, in which n represents the case of the clock, carrying clock machinery supported within the box I), from which extends the arbor c. Surrounding the sleeve c of the minute-handis arranged the sleeve d, carrying the hourhand. This sleeve d passes through the sleeve e, having mounted thereon an indicator or hand,f. The rear end of the sleeve 6 is provided with the notch 6, adapted to receive a pin, g, secured to the wheel /0? theh'euwhaed. sleeved-.- This wheel is pushed forward by. the vertical spring 71., one end of which is fixed to the block of insulation 2'. The other end is free to vibrate, and is provided with a metallic contactpoint adapted to engage with a corresponding contact, 7c,secured to the metallic angle-plate 7c.

The vertical spring h is electrically connected with one pole of the battery A by means of the conductor 1, while the angleplate 7a is electrically connected with the metallic brush or spring Z by means of the conductor 2, electrically connected with the other pole of the battery. This brush Z is in constant frictional contact with the disk Z, which is connected with the flexible cord Z of the rotary drum Z", composed of the disks Z" Z and sleeve of insulation Z This drum carries the flexible electrical conductor Z,forming a single cable. One end of one of the two conductors forming the said cable is electrically connected with the metallic disk Z", while one end of the other is connected likewise to disk Z, and the remaining ends are connected with the terminals of the bell. The object of the rotary drum is to admit of the bell being taken out of the case and placed a suitable distance from the clock without disconnecting any of the electrical conductors.

To the'front' of the clock below the dial there is arranged the thermometer m. The mercury within the bulb is electrically connected with the binding-post n, and by means of the conductor a is in turn electrically connected with the binding-post n",electrically connected with one pole of the battery by means of the electrical conductor 3, leadingto and connected with the metallic brush or spring Z, the rotary drum, the cable thereon, the bell, and returnwire, all heretofore referred to. The upper end of the glass tube of the thermometer m is provided with a metallic wire, m, entering the mercury-channel. The other end of this wire is electrically connected with the binding-post a by the conductor a. This binding-post n is electrically connected with one pole of the battery by the conductor a, vertical spring h, and conductor 1. It will be observed that when the mercury shall have made contact with the metallic wire at the circuit will then be closed, thus giving the alarm by ringing the bell D, which is at all times in circuit with the battery. There is also the two binding-posts n and n forming the two terminals, which may be easily traced without describing it. A conductor, 4, leads from the binding-post n to the plate 8. One end of the latter is secured to the blockof insulating material 9, while the other end of the said plate 8 remains free and unobstructed There is arranged between this free end and insulating block 9 an adjustable contactscrew, 11, adapted to make contact with the corresponding point, 12, arranged on the metallic spring 13. One end of this spring is secured to the under side of the block of insulati-ag. material 9. That pertieaet the spring 13 covering the said block 9 isprovi-ded with a projecting point, 20, adapted to penetrate the jamb of a door or window and hold the device in such a manner as will cause the window or door to press the spring 13 toward the plate 8, thus bringing the contact-points 11 and 12 in contact with each other, thereby closing the circuit and giving the alarm. There is also connected with the bindingposts n and n the conductors 14 and 15. The former is electrically connected with the spring-plate 0, provided with the contact 0. Each end of this spring-plate 0 is properly secured to blocks of insulation P P, to the under side of which is secured the metallic plate 1-, with which is connected the conductor 15. The upper portion of the plate r is of course provided with the contact point 0*. The spring-plate 0 is adapted to receive the foot of a bed-post in such amanner as will enable the downward pressure of the bed when a person is upon it to force the contact-points 0 0 together, and thus give the alarm. when the circuit shall have been closed at the point B, the predetermined signal will be given to the servant.

To the top of the frame of the clock is arranged a pushbutton, 16, which, when pressed upon, will carry the spring 17 downwardly and cause the points 18 and 19 to come in close contact with each other, thereby closing the circuit with the battery and bell. The current of this last-mentioned circuit will pass from the battery A." through. the conductor connected with the brush Z, thence to the disk Z, from which it passes to one of the conductors forming the cable surrounding the rotary drum. It then passes through the mechanism of the bell, whichmay be of any ordinary construction, thence through the other conductor of the said cable to the disk Zfl from which it passes to the brush Z, conductor 2, and angle-plate K, thence to the spring 17 and conductor 25,fron1 which it passes to the conductor 1, leading to the battery A, thus completing the circuit when using the device as a call-bell.

iVe are aware that electric clocks have heretofore been made; but we are not aware that they were ever before made with the combinations herein shown and described.

Having thus described our invention, what we claim as new, and desire to secure by Let ters Patent, is-

1. The combination, with a carriage or hand clock, of an'electrical battery located within the frame of the clock, a rotary drum carrying flexible conductors having their terminals connected with an electrical bell in circuit with aforesaid battery, a device arranged around the hour-hand shaft, carrying an indicator and adapted to close circuit at a predetermined time, a thermometer connected withthe frame of said clock and in the electrical circuit with aforesaid battery and bell,a burg- IOU lav-alarm, servants signal and cell in circuit with the aforesaid battery and bell, the whole forming a complete device.

2. The combination, in a clock-movement, of the sleeve encircling the outer shell; of the clock-hands, said sleeve mounted with an indieater adapted to be adjusted in front of the dial or face of the clock, the rear end of said sleeve provided with a notch adapted to receive a pin screwed to a wheel of the clockmovement, said wheel adapted to be pushed forward by means of an electrical contactspring in circuit with a battery and bell, substantially as shown and described.

In testimony that we ciei 1n the foregoing W8 have hereunto set our hands this 4th day of May, 1887.

HANS PETER FREDERIK JENSEX, BROWNE WOLSEY WEBB JENS JENSEN.

Witnesses as to Hans Peter Frederik Jensen and Browne Volsey XVebb:

G. F. XVARREN,

Notary Public, London WALTER J. SKERTEN,

17 Greece/2111071 Street, London, E. C. \Vitnesses as to Jens Jensen: CHARLES MORLEY, CHARLES AINON. 

